Merrick Donenberg, M.D.
Cardiovascular Disease Physician · Ottawa, IL
Merrick Donenberg, M.D. is a cardiovascular disease physician with a practice address in Ottawa, Illinois, and NPI 1457647133, issued on Jun 21, 2011. Check the license (Illinois 036135131, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Merrick Donenberg
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 036135131 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1050 E Norris Dr Ste 2C, Ottawa, IL 61350
- Phone
- (815) 434-0276
- Enumerated
- Jun 21, 2011
- Record last updated
- Jul 17, 2025
- Fax
- (815) 434-0319
- Medicare enrollment
- Enrolled (PECOS I20161004002310); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2011
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,073 in Illinois → Look up another NPI →
Verify Merrick Donenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036135131Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average cardiovascular disease physician in 2024
6,533 Medicare Part D claims for 702 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium847 claims
- Carvedilol546 claims
- Rosuvastatin Calcium450 claims
- Metoprolol Succinate394 claims
- Spironolactone379 claims
- Losartan Potassium376 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Osf Multi-Specialty GroupOttawa, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Merrick Donenberg among 1,073 cardiovascular disease physician records in Illinois
Merrick Donenberg, M.D. is one of 1,073 cardiovascular disease physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2011 · median 2001 among the 688 with a school on file
- Record last updated2025 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 cardiovascular disease physician records list a practice address in Ottawa
They are 5 of the 334 NPPES records with a practice address in Ottawa, and 1,073 cardiovascular disease physician records in Illinois.
All 1,073 in Illinois → Every provider in Ottawa → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Asim Babar, M.D.Ottawa, IL 613501053755710
- Mostafa Ghanim, MDOttawa, IL 613501598118895
- Mauro Montevecchi, M.D.Ottawa, IL 613501871770537
- David Thompson, M.D.Ottawa, IL 613501063673515
- Madan Gupta, MDGalesburg, IL 614011215030481
- Pasupathy Padmanabhan, MDGalesburg, IL 614011952331993
- Harish Patlolla, M.D.Moline, IL 612651528323870
- Harry Wallner, M.D.Moline, IL 612651407835366
Common questions
What is Merrick Donenberg, M.D.'s NPI number?
Merrick Donenberg, M.D.'s National Provider Identifier (NPI) is 1457647133, issued on Jun 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Merrick Donenberg, M.D. located?
The NPPES record lists a practice address at 1050 E Norris Dr Ste 2C, Ottawa, IL, 61350. Phone: (815) 434-0276. Providers update this record themselves, so call before visiting.
How can I verify Merrick Donenberg, M.D.'s license?
NPPES lists Illinois license number 036135131, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Merrick Donenberg, M.D. prescribe under Medicare Part D?
In 2024, Merrick Donenberg, M.D. had 6,533 Medicare Part D claims for 702 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.